TRAIN PANTOGRAPH AUTOMATIC DESCENT SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide a train pantograph automatic descent system capable of quickly detecting breakage of a pantograph, protecting a circuit on a vehicle side, and suppressing breakage of a wiring or other pantograph due to the broken pantograph.;SOLUTION: A train pantograph automatic descent system of the invention makes all pantographs 3A, 3B descend when the pantograph 3A, 3B is broken. When lifting control means V (electromagnetic valve) lifts up the pantographs 3A, 3B, and one of pressure detection means PS becomes in an off state, the descend system operates the lifting control means V so as to make plural current block devices 6A, 6B to perform an opening operation and make all pantographs 3A, 3B descend.;SELECTED DRAWING: Figure 6;COPYRIGHT: (C)2017,JPO&INPIT